A. Zambetaki et al., CYTOGENETIC ANALYSIS OF MALPIGHIAN TUBULE AND SALIVARY-GLAND POLYTENECHROMOSOMES OF BACTROCERA-OLEAE (DACUS-OLEAE) (DIPTERA, TEPHRITIDAE), Genome, 38(6), 1995, pp. 1070-1081
Photomaps of the Malpighian tubule and the salivary gland polytene chr
omosomes of Bactrocera oleae (Dacus oleae) are presented and compared
with those of the fat body. Five polytene chromosomes (10 polytene arm
s) corresponding to the five autosomes of the mitotic nuclei, as well
as a heterochromatic mass corresponding to the sex chromosomes, are ob
served in the nuclei of the three somatic tissues. The most prominent
features of each polytene chromosome, the reverse tandem duplications,
as well as the rather unusual ectopic pairing of the telomeric region
s of different chromosome arms, are described. The constancy of the ba
nding pattern based on the analysis of the three larval tissues is dis
cussed.